Most VAT vendors are automatically assigned to one of two standard two-monthly filing cycles, offset by a month from each other. Here's what determines which one you're on.
Last updated: June 2026
Most standard VAT vendors in South Africa file bi-monthly returns, and SARS splits vendors into two categories with offset filing periods to spread the administrative load: Category A vendors file for periods ending on odd months (January/February, March/April, and so on), while Category B vendors file for periods ending on even months (February/March, April/May, and so on) — the two categories are staggered by one month from each other.
Category assignment is generally made by SARS at registration, and isn’t typically something you choose freely — it’s largely administrative, designed to balance the volume of returns SARS processes across each filing period. Some vendors, depending on turnover level and other criteria, may fall into different filing categories (monthly for very large vendors, or six-monthly/annual for certain smaller categories) rather than the standard bi-monthly A/B split.
Knowing your category tells you exactly which months your VAT201 return and payment are due, which matters for cash flow planning and avoiding late-filing penalties. If you’re unsure which category you’re in, check your VAT registration confirmation or your eFiling profile, since operating on the wrong assumed schedule is a common, easily-avoided compliance mistake.
Generally no, this is assigned by SARS at registration based on administrative allocation, not a choice you make freely.
Yes, some vendors file monthly (typically larger businesses above a certain turnover) or on longer cycles (six-monthly or annually, for certain smaller categories meeting specific criteria) rather than the standard bi-monthly A/B split.
Check your VAT registration confirmation letter from SARS, or log into eFiling, where your specific filing category and due dates are shown.
No, it only determines the timing and grouping of your filing periods — it doesn’t change your underlying VAT liability.
Yes, if your circumstances change (for example, turnover crossing a threshold that requires monthly filing), SARS can reassign your filing category.
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